Domestic House Extensions

Mars Building Ltd - Domestic House Extensions

Extending or making alterations and improvements to your house enables you to maximizes and personalize your property to its fullest potential.
Whether working with your drawings or utilizing our design and build service, we will work in partnership with you to complete your project to your full satisfaction.

Our Customer Satisfaction Promise:

We follow a strict guide which includes:

No hidden extras
When we price a job, we provide a detailed quotation, so you will know exactly what is and what is not included. This means there is no question of any hidden extras!
Quality
All our tradesmen are fully qualified and experienced, having worked together for many years. Everyone works to the same high standards, with the same aim - to achieve the best possible results with complete customer satisfaction.
Reliability
We know that once your house and life has been disrupted by the start of building work, the last thing you want is for nothing to happen for days or even weeks on end. With Mars Builders this does not happen.
This is why we only take on a work load which we are sure we can cope with, which ensures that we can achieve full continuity of work on all our contracts.
Mars Building Ltd has been built on reputation; we know that we are only as good as our last job!

Contact Us

Why Choose Mars Building Ltd?

Our Customer Satisfaction Promise:

Mars Building Ltd has been built on reputation; we know that we are only as good as our last job so with our building projects you get:

No hidden extras

When we price a building job, we provide a detailed quotation, so you will know exactly what is and what is not included. This means there is no question of any hidden extras!

Quality assured

All our builders and tradesmen are fully qualified and experienced. They have worked together for many years.
Everyone works to the same high standards, with the same aim - to achieve the best possible results with complete customer satisfaction.

Service you can rely on

We know that once your house and life have been disrupted by the start of building work, the last thing you want is for nothing to happen for days or even weeks on end. With Mars Builders this does not happen.
We only take on building projects which we are sure we can cope with, which ensures that we can achieve full continuity of work on all our contracts.

Please call us: Tel : 01438 812949Mobile : 07956 503162

Feel free to contact us regarding any of our services. We have a friendly team that are always happy to help in whatever way we can.

About us

Based in Knebworth, Herts, Mars Building Ltd is an established, family run business, with over 25 years building experience.
We work mainly in the Hertfordshire (Herts) area with most of our contracts being in Welwyn, Stevenage, St Albans, Hatfield, Harpenden, Knebworth, Hertford, Welwyn Garden City, Potters Bar, Brookmans Park.